She and James, who first met in Aspen at a film premiere in 2014, confirmed their engagement last month and Mariah recently joked about her enormous engagement ring, telling E! News, ‘It’s so heavy I can’t lift my arm up! No…it’s a nice chunk.’

The pair have both been married twice before.

Mariah was wed to Nick from 2008 to 2014 and music mogul Tommy Mottola from 1993 to 1997.

Mariah with former husband Nick Cannon (Picture: File)

Meanwhile 48-year-old James was previously married to Australian singer Erica Packer and former model Jodhi Meares.

His wife-to-be, who has sold more than 200 million records worldwide, recently spoke about her reputation for being demanding, saying she’ll ‘always be a diva’.